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Pinpoint Test K : U0256: Notes

WARNING: This page is about a different car, the 2017 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

DTC Fault Trigger Condition-PCM 

DTC Description Fault Trigger Conditions
U0256 Lost Communication With Front Controls Interface Module "A" The PCM sets this DTC if data messages from the FCIM through the GWM are missing.

Normal Operation and Fault Conditions 

REFER to: Communications Network - System Operation and Component Description .

Possible Sources 

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